Daewoo Refrigerator Error Code F1

F1 on a Daewoo refrigerator indicates a malfunction in the F-sensor, which is the freezer compartment temperature sensor. The fault is triggered by either a short circuit within the sensor itself or a disconnection in the sensor wiring. The refrigerator will continue running in a reduced protective mode, but temperature control will not be accurate until the sensor issue is resolved.

The refrigerator will operate in a limited backup mode with F1 active, meaning it continues to run but cannot regulate temperatures accurately. This could result in food being stored at unsafe temperatures over time, particularly in the freezer. It is advisable to check your food for signs of improper temperatures and have the repair completed as soon as possible.

Unplugging the refrigerator and restoring power may temporarily clear the F1 code, but the error will return if the underlying sensor fault is still present. A reset does not repair a failed thermistor, broken wire, or corroded connector. Permanent resolution requires diagnosing and correcting the specific fault in the F-sensor circuit.

If the cause is a loose or disconnected wiring connector, you may be able to reseat it yourself after unplugging the refrigerator and locating the sensor harness. However, if the thermistor itself has failed or wiring is broken, you will need to replace the faulty component, which requires basic electrical diagnostic skills. Measuring sensor resistance with a multimeter and comparing it against the expected value for the current freezer temperature is the key diagnostic step.

If the fix is simply reseating a disconnected connector, there may be little to no parts cost involved. Replacing a failed F-sensor thermistor typically costs between $15 and $60 for the part, with labor adding $80 to $150 depending on your location and the service provider. If the control board is at fault, repair costs will be higher, generally ranging from $150 to $350 or more for parts and labor.